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National Stock Number:
4730-01-297-0220
Federal Supply Class:
4730
National Item Identification Number:
012970220
Description:
COUPLING,BOSS
Detail:
A STRAIGHT ONE-PIECE FITTING 12 INCHES (304 MM) LONG OR UNDER HAVING THE SAME SIZE FITTING ON EACH END (STRAIGHT MACHINE THREADS OTHER THAN PIPE OR HOSE SERIES). IT MAY HAVE INTERNAL THREADS ON BOTH ENDS OR INTERNAL THREADS ON ONE END AND EXTERNAL THREADS ON THE OTHER DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE, TO FORM A SEAL AT THE BOSS. IT IS DESIGNED TO JOIN TWO BOSSES OR BOSS FITTINGS. EXCLUDES ITEMS HAVING EXTERNAL THREADED CONNECTIONS ON BOTH ENDS.
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Manufacturer Information:
| 5497726 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 5497726-1 | 38597 | LOCKHEED MARTIN CORPORATION | | 5497726-1 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 5497726-1 | 61428 | ADVANCED RECORDING TECHNOLOGIES INC DBA MAGNETIC ARTS DIV MAGNETIC ARTS DIV |
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Techincal Specification:
| CONNECTION TYPE | THREADED INTERNAL TUBE 1ST END | | CONNECTION TYPE | THREADED INTERNAL TUBE 2ND END | | CONNECTION STYLE | PLAIN (TUBE) 1ST END | | CONNECTION STYLE | PLAIN (TUBE) 2ND END | | MATERIAL | STEEL COMP 4140 OVERALL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES 1ST END | | NOMINAL OVERALL LENGTH | 2.190 INCHES | | NOMINAL THREAD SIZE | 0.750 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.190 INCHES 2ND END | | THREAD CLASS | 2B 2ND END | | THREAD CLASS | 2B 1ST END | | THREAD SERIES DESIGNATOR | UNF 2ND END | | THREAD SERIES DESIGNATOR | UNF 1ST END |
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